Radio Bearer Setup via Cached Context Information
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Solution Overview
Problem
Current wireless communication technologies require significant signaling interactions and resource allocation during handover processes between base stations, leading to increased transmission resources, signaling overhead, and network construction costs.
Innovation Solution
A method and device for wireless communication that allows the first network equipment to acquire and use context information of terminal equipment to set up or resume a radio bearer, with the context information being retrieved from management equipment where it was previously stored by the second network equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional handover process with extensive signaling communication between source base station and target base station is used, then reliable handover can be achieved, but transmission resources and signaling overhead increase significantly
Solution Approach 1:
The patent extracts the context information from the source base station and stores it in the management equipment (MME) before handover. This extraction eliminates the need for extensive signaling communication between base stations during handover, as the target base station can retrieve the cached context information directly from the MME, thereby reducing signaling overhead while maintaining handover reliability.
Solution Approach 2:
The patent performs preliminary action by caching the context information in the management equipment before the actual handover occurs. This advance preparation allows the target base station to quickly obtain necessary information without requiring real-time communication with the source base station, thus reducing transmission resources and signaling overhead during the handover process.
2Ease of operation
If communication link is configured between source base station and target base station for handover, then handover can be completed, but network construction cost increases
Solution Approach 1:
The patent introduces the management equipment (MME) as an intermediary that caches context information. This intermediary allows the target base station to obtain necessary handover information without establishing direct communication links with the source base station, thereby simplifying network construction while maintaining ease of handover operation.
3Quantity of substance
If context information is cached in management equipment before handover, then signaling overhead is reduced, but additional storage resources are required
Solution Approach 1:
The patent leverages the existing management equipment (MME) which already performs multiple functions in the network, and adds the capability of caching context information to it. This multi-functional approach avoids the need for dedicated storage resources while reducing signaling overhead, as the MME's existing infrastructure is utilized for the additional caching function.
Data Source
AI summary
Provided are a radio communication method and device. The radio communication method comprises: in a first time interval, first network equipment receives a first request message transmitted by terminal equipment and requesting the first network equipment to establish or recover a radio bearer for the terminal equipment; the first network equipment acquires, according to the first request message, context information of the terminal equipment, wherein the context information of the terminal equipment is stored in management equipment, the context information of the terminal equipment is sent to the management equipment and transmitted from a second network equipment to the management equipment, and the second network equipment is the last network equipment generating or updating, before the first interval, the context information of the terminal equipment, and the first network equipment establishes or recovers, according to the context information of the terminal equipment, the radio bearer for the terminal equipment. The embodiment can reduce required transmission resources and signaling overhead, reducing costs of constructing a network.